Program.cs -

: Wrap your code in a namespace and a class Program to ensure proper scope.

If you are a student and need to "write a complete program on paper" for a Computer Science exam, follow these standard structural requirements: Program.cs

: Start with necessary using directives (e.g., using System; ). : Wrap your code in a namespace and

: Use builder.Services to register all your required classes before calling builder.Build() . Program.cs